1320081 has 8 divisors (see below), whose sum is σ = 2011584. Its totient is φ = 754320.

The previous prime is 1320061. The next prime is 1320091. The reversal of 1320081 is 1800231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1320081 - 2¹⁰ = 1319057 is a prime.

It is a super-2 number, since 2×1320081² = 3485227693122, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1320081.

It is not an unprimeable number, because it can be changed into a prime (1320031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31410 + ... + 31451.

It is an arithmetic number, because the mean of its divisors is an integer number (251448).

2^1320081 is an apocalyptic number.

It is an amenable number.

1320081 is a deficient number, since it is larger than the sum of its proper divisors (691503).

1320081 is an equidigital number, since it uses as much as digits as its factorization.

1320081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62871.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1320081 is about 1148.9477794922. The cubic root of 1320081 is about 109.6983747873.

The spelling of 1320081 in words is "one million, three hundred twenty thousand, eighty-one".